Georges de Buffon, a French scientist, was the first to give a scientific explanation regarding the origin of the earth in 1745. According to Buffon, a comet came very close to the sun and collided with it due to gravitational pull .
As a result of this collision, a lot of material was ejected from the sun and got separated from it. The separated matter formed planets and asteroids after condensation due to cooling. The bigger masses became planets and the smaller masses became asteroids. Some of the lighter matter disappeared in the space permanently.
Merits of Buffon's Hypothesis
Demerits of Buffon's Hypothesis
Although this theory remained almost unchallenged for about 50 years, scientists raised serious objections to its validity in due course of time. Following are the main objections :